atomic number 80


Also found in: Thesaurus.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.atomic number 80 - a heavy silvery toxic univalent and bivalent metallic elementatomic number 80 - a heavy silvery toxic univalent and bivalent metallic element; the only metal that is liquid at ordinary temperatures
metal, metallic element - any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc.
cinnabar - a heavy reddish mineral consisting of mercuric sulfide; the chief source of mercury
calomel, mercurous chloride - a tasteless colorless powder used medicinally as a cathartic